baber/WOPTO huggingface dataset:
Patent GB-944983-A (GB)
Title: Improvements in high frequency generators
Inventor: FROOME KEITH DAVY
IPC: H03B11/08
Filed: 1959-09-04
Abstract: 944,983. Generating oscillations. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 2, 1960 [Sept. 4, 1959], No. 30205/59. Heading H3B. [Also in Division H1] A high frequency generator comprises a cold cathode arc discharge tube 5 coupled to an input circuit 1 energized by microwave power, so that the arc emits microwave noise, and having an output circuit 6 designed to transmit power at harmonic frequencies of the input energy. As shown, the arc 2 can be tuned to the output circuit by means of a steel plunger 7 moved by an external magnet. The discharge tube may be mounted across an input waveguide, coaxial line or Lecher line, or the arc may be produced inside a waveguide, the anode 4 and cathode 3 being in direct contact with the appropriate waveguide walls or being reactively coupled thereto. Alternatively a microwave lens or mirror system may be used to concentrate energy into the arc. Harmonic power may be extracted from the arc by similar methods.
Patent GB-484581-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/30
Filed: 1936-11-06
Abstract: 484,581. Vacuum cleaners. HOOVER HOLDING CO., Ltd., (formerly HOOVER, Ltd.). Nov. 6, 1936, No. 30268. Convention date, Dec. 11, 1935. [Class 8 (i)] The fan chamber C of a propeller vacuum cleaner is rigid with the handle and rotatable in relation to the carriage, as described in Specification 412,894. The nozzle is fixed on the carriage and carries a lamp H. Current is led to the lamp from the handle through sliding contacts carried by the fan casing and an arcuate insulating housing L carried by the chassis. The current supply may pass through the motor and a, resistance may be included in the lamp circuit to lower the voltage.
Patent GB-1466856-A (GB)
Title: Method and means for securing a water closet pan to a floor
IPC: E03D11/16
Filed: 1974-05-17
Abstract: 1466856 Mounting closet pans J SCHOFIELD 17 May 1974 [26 June 1973] 30347/73 Heading E1C A w.c. pan 10 is secured to the floor by bolts 18 passing through holes 16 in the pan's base so as to engage in threaded sockets 15 in a plate 11 which is secured to the floor so as to fit within a recess in the pan's base. The pan rests on a rubber ring 17. The sockets 15 may comprise nuts moulded into a plastics plate 11.
Patent GB-672010-A (GB)
Title: Improvements in electrical resistance units
Inventor: FLIGHT THEODORE NICHOLAS
IPC: H01C3/10
Filed: 1950-12-12
Abstract: 672,010. Metal grid resistances; combinations and sets of two or more resistances; mountings for resistances. RHEOSTATIC CO., Ltd. Dec. 12, 1950, No. 30374/50. Class 37. In a resistance bank, Fig. 3, metal tie-rods 8, 9 threaded with ceramic interlocking bobbins 10, 11 are flanked on each side, Fig. 4, with a group or grid of resistance strips individually of flat S-formation, Fig. 1. Each resistance strip welded to its neighbour at tapping points 17, Fig. 3, is secured by means of a support strip 7, Fig. 2, a hole 15 in which, as exemplified in Fig. 4, is occupied by the projecting part 13 of the corresponding ceramic bobbin 10. The flanges 12 on the ceramic bobbins 10, 11 engage. the strip turns as at 18, Fig. 4, to give support against vibration. The assembly, Fig. 3, may be detachably mounted with other similar assemblies in a flanged resistance frame by means of a cranked strip joining the two tierods, Figs. 5 and 6 (not shown).
Patent GB-1298647-A (GB)
Title: Endless tape cartridge
IPC: G11B15/02
Filed: 1971-06-29
Abstract: 1298647 Tape cartridge MONDO KK 29 June 1971 [29 June 1970] 30429/71 Heading G5R A tape cartridge 6, Fig. 1, includes a stepped roller 7, the larger diameter portion (preferably of rubber) being adapted for being driven by the normal mechanism 4 of a cartridge player, and the smaller diameter portion (preferably of metal) being arranged, in conjunction with a spring tensioned pinch roller 10, to advance the tape, whereby the speed of the tape is less than the peripheral speed of the tape drive mechanism 4.
Patent GB-1509253-A (GB)
Title: Cooled piston for internal combustion engines and method for its manufacture
IPC: F02F3/18
Filed: 1975-07-21
Abstract: 1509253 Piston ALCAN ALUMINIUMWERK NURNBERG GmbH 21 July 1975 [23 July 1974] 30498/75 Heading F2T In a light metal or iron piston cast in one piece, cooling gallery 2 is intersected by axial and/or radial (Fig. 2, not shown) pillars 3, which may be of circular cross-section (Fig. 5, not shown). Alternatively or additionally, the gallery surface may be formed with fins, which do not extend right across the cavity. A highly porous carbon casting core is formed with bores and/or slots to provide the pillars and/or fins, respectively. The core is removed, after the casting has cooled, by being burnt away.
Patent GB-672656-A (GB)
Title: Improvements in or relating to barrier grid signal storage tubes
IPC: H01J31/60
Filed: 1950-12-15
Abstract: 672,656. Cathode-ray tubes. WESTERN ELECTRIC CO., Inc. Dec. 15, 1950 [Dec. 17, 1949], No. 30647/50. Class 39 (i). The potential of the collector electrode of a barrier grid signal storage tube is made negative relative to the barrier grid instead of positive as expected. The tube comprises a cathode 13, modulating, accelerating and focusing electrodes 14-18, deflection plates 19, 20, a target formed of an insulating sheet 21 having high secondary emission, e.g. mica, backed by a metal coating 22, e.g. aluminium, and with a fine screen 23, e.g. stainless steel on its front face. The signals are applied to the target from a cathode follower circuit 28, and as the beam scans the front face of the target a storage charge pattern is set up which is relatively stable. In the reading operation, the beam scans the charge pattern giving secondary emission, the majority of the secondary electrons passing to the barrier grid which lies alongside the charged area but a portion of these electrons with axial or high velocities pass to the collector electrode 24 even though it is negative relative to the grid. The output signal is developed across load resistance 29, the other end of which is connected to an adjustable tapping-point 30 on the battery 40. Blocking signals may be applied to electrode 14.
Patent GB-226569-A (GB)
Title: Improvements in or relating to screw propellers
IPC: B63H1/28
Filed: 1924-12-20
Abstract: 226,569. Canova, F. P. Dec. 20, 1924. Screw propellers.- Screw propeller blades have holes in the rear faces which communicate by ducts or passages with the surrounding fluid at positions near the boss and are controlled by valves. Two sets of holes a, b in the rear face of each blade communicate by passages d, c, Fig. 1, with springs f, e in the boss g. Pivoted flap valves are mounted opposite these openings, and are suitably controlled by levers or cables. In a modification, the holes d, e, f, Fig. 6, in the blades are controlled by valves operated by solenoids a, b, c. The supply and return leads are connected to the studs g, h, i on the boss which move over stationary segments, the latter being connected to a switch G.
Patent GB-1021562-A (GB)
Title: Improvements in or relating to lintels for buildings
IPC: E04C3/02
Filed: 1962-08-10
Abstract: 1,021,562. Metal lintels. I. WILLIAMS. June 6, 1963 [Aug. 10, 1962], No. 30703/62. Headings E1K and E1V. A steel lintel incorporating a damp-proof course comprises two sections welded together to form a trifurcate section with horizontal, steel mesh-covered lower arms 4 and 10 having a step in between, and a sloping arm 3 with a bent-down top flange fixed between courses of the inner brickwork skin. In the embodiment of Fig. 3 (not shown), the section 10 is replaced by a flat plate buttwelded to the base of the sloping arm 3.
Patent GB-1481241-A (GB)
Title: Means for testing the action of chemical compounds or compositions on micro-organisms
IPC: C12M1/20
Filed: 1974-07-11
Abstract: 1481241 Microbiological testing A J OLIVER and A E BROOKFIELD 11 July 1974 30729/74 Heading C7F [ Also in Division G1] In the endless absorbent test strip described and claimed in Specification 970877, the zones of antibiotics are separated by water-impermeable barriers of e.g. silicone polymer, linseed oil or paraffin wax. In a preferred construction, the zones are located in peninsular areas 2 carried by the endless strip 1 and separated by stripes of silicone 3. A pointer is provided for location purposes. A solution or suspension of the water-repellant material may be applied to the strip and cured by heating. Thereafter the zones defined by the water-impermeable material are impregnated with the various antibiotics.
Patent GB-666832-A (GB)
Title: Pallet racks
IPC: B65D19/40
Filed: 1949-11-30
Abstract: 666,832. Shelves. SAUL, S. Nov. 30, 1949. No. 30749/49. Class 52 (i). A storage rack for shelves or pallets 2 comprises a plurality of vertical supporting frames 1 each comprising a pair of braced standards 3 and 4 (not shown), having flanges 13, 14 provided with shelf-engaging notches 15 at spaced vertical intervals. The notches form a hook 16 having a surface 17 tapering downwardly and inwardly and the upper edge has a flat surface 18 connected with the inner surface 20 by a curved surface 21. Each of the shelves 2 is composed of a pair of parallel L-shaped angle sections with flanges 25 and having at their ends mounting clips,37 and joined by a plurality of similar angle sections 24 welded at right angles to the said pair. The particular shape of the notches 15 prevents accidental disengagement of the clips 37. An upward force would disengage the clip 37 from the hook 16 but the curved surface 21 will guide the flange 25 into engagement with the flat part 18, preventing further movement, the shelf moving downwards again when the force is removed. In assembling the rack the top and bottom shelves are preferably bolted to the supports 3 and 4 (not shown). Strips 45 are connected in position between the standards 4 at the rear of the rack to limit the rearward movement of the pallets: In a modification the rear supporting standards are made wider thus allowing the rear edge of the shelf to be made narrower so that it will pass between the forward supports 3. The shelves may then be placed in position by the arms of a fork lift truck.
Patent GB-229789-A (GB)
Title: Improvements in or relating to electric relays
IPC: H01H53/10
Filed: 1923-12-07
Abstract: 229,789. Ross, T. W., Ryder, C., and Metropolitan-Vickers Electrical Co., Ltd. Dec. 7, 1923. Cut-out arrangements; induction-relays for polyphase circuits have two operating electromagnets with windings in highly inductive circuits one of which is energized from one or more phase conductors and the other from the remaining phase conductor or conductors so that their fluxes are substantially in quadrature. In the form described an ordinary single-phase relay is employed comprising a core 4 with highly inductive windings 10, 11 wound thereon in opposite senses and connected to the phases 6, 7 and a second core 3 carrying a substantially non-inductive winding 8 which is connected in series with a highly inductive, reactance 9 to the phase 5. The windings are brought to a star-point the arrangement being such that the phases of the fluxes produced in the cores 3, 4 differ by 90‹. The disc 1 is provided with a spring 15 tending to hold a contact 16 against a fixed contact 17 the contacts being normally held apart by the torque produced in the disc; but when this torque falls due to drop in voltage, phase failure or reversal on the protected line, the contacts 16, 17 complete a a tripping circuit for the associated circuit breaker. On a two phase system one of the windings 10, 11 is omitted.
Patent GB-633700-A (GB)
Title: Improvements relating to stills for the distillation of crude tar or the like
IPC: C10C1/04
Filed: 1946-10-16
Abstract: <PICT:0633700/III/1> <PICT:0633700/III/2> In distillation apparatus for crude tar or mineral oil, in which a pipe coil is traversed by one fluid and swept externally by another fluid flowing through one or more passages parallel to the axis of the coil, those parts of the coil swept by the second fluid are formed from cast elements 2, each of which is rectangular in longitudinal section and is formed with a longitudinal bore 3 bounded on one side by a curved wall 9 and on the opposite side by a wall presenting a cavity bounded by flanges 4, 5, the elements being built up to form a sinuous bounding wall or walls of the passage or passages.  In the form shown, the cavities contain refractory material 6, lutes in the flanges 5 may form dead-air spaces or contain packing 8, and the cast elements have ribs 13.  The end flanges 4 extend on opposite sides of the cast elements and form end walls for the fluid passages.  The opposite walls of the fluid passage are formed by further cast elements or, as shown, by refractory blocks 11.  The outer casing 1 may be formed, for easy access for cleaning, as a number of hinged doors lined with refractory material.  Specifications 608,301 and 608,303 are referred to.
Patent GB-1108453-A (GB)
Title: Metal vapour converter vessel for high voltages
IPC: H01J13/20
Filed: 1966-07-08
Abstract: 1,108,453. Metal-vapour converters. SIEMENS-SCHUCKERTWERKE A.G. 8 July, 1966 [8 July, 1965], No. 30907/66. Heading HID. . A. metal vapour current converter vessel for high voltages includes a cathode, an anode 11 surrounded by a group of overlapping coaxial tubes 30 . . . which each support a grid 20-23 at or near one end of the tube, a further group of overlapping coaxial tubes which each support a grid 25-28 at or near one end of the tube, the tubes in the respective groups opening in opposite directions, and a lead 31 ... from each tube which extends to the outside of the vessel through a vacuum-tight seal, the spacing of the seals axially of the tubes being greater than that of the grids. A grid 24 is provided in the plane of symmetry between the two groups. The leads 31 ... are metal flanges which are sealed between ceramic sections 35 of the anode insulator 10 with the aid of intermediate flanged members (36), (Fig. 2, not shown). Rings 45 brazed to the flanges 31 form a shield protecting the ceramic sections 35 from discharge products and heat, and also shield the discharge from extraneous magnetic fields. In a modified construction (Fig. 4, not shown), the anode insulator is in two parts joined by a metal cylinder surrounding the region of the grids, and the rings 45 are bent so as to overlap. The converter further comprises a tank 1, cathode reservoir 2 containing mercury 4, cathode insulator 3, ignition electrode. 5, exciter anode 6, diaphragm 7, control grid 8. and deionizing grids 9. The tank 1 and reservoir 2 are double-walled with liquid cooling. A plate 16 is connected through a dropping resistor 18 to a plate supporting the anode 11. A fan 42 draws air through a jacket 41 over cooling needles 40 attached to the flanges 31 and over cooling fins 12 attached to the anode 11.
Patent GB-1121090-A (GB)
Title: Improvements in or relating to protective rings
IPC: F16D65/18
Filed: 1966-07-11
Abstract: 1,121,090. Flange &c. protecting rings. ALFRED TEVES MASCHINENUND ARMATURENFABRIK K.G. 11 July, 1966 [28 July, 1965], No. 30980/66. Heading B8C. A protective ring 1 of resilient material is attached to a circular casing aperture 4 to provide sealing-tightness therebetween by a ring 2 formed with inwardly directed resilient tongues 3 which engage in grooves 5 formed on the casing. The ring 1 may be glued to both the ring 2 and the casing. The ring 2 may be formed of sheet metal and the tongues 3 punched out of it. The edge of the ring carrying the tongues 3 may be knurled.
Patent GB-192823-A (GB)
Title: Improvements in and relating to railway carriage door and like locks
IPC: E05B15/02
Filed: 1921-11-21
Abstract: 192,823. Kaye, W. K. Nov. 21, 1921. Striking-plates for locks and latches.- The striking-plate of a lock in which a ram-bolt is used for locking a door on slamming, has an adjustable part for taking up wear due to the constant contact of the ram-bolt. In the form shown in Fig. 2, the striking plate P has a screwthreaded plug A mounted at right-angles to its inclined surface, which can be screwed forward from behind to take up wear due to the ram-bolt. In this form, when the plug A is advanced, it has to be filed in order to make its surface correspond with that of the rest of the striking plate. In the form shown in Fig. 4, a tapered plug A<x> of rectangular cross-section is secured to the striking plate by a screw S and wear of the rambolt is taken up by inserting a new plug in place of the worn one.
Patent GB-534767-A (GB)
Title: Improvements in or relating to piezo electric crystal mountings
IPC: H03H9/09
Filed: 1939-11-28
Abstract: 534,767. Piezo-electric crystal mountings. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 28, 1939, No. 31012. Convention date, Nov. 28, 1938. [Class 40 (v)] A mount for a piezo-electric crystal C includes two electrode plates P formed at the corners with risers R1 - R1 which are adapted to clamp the crystal near the edges. The centres of plates P are formed with raised electrode parts E, the distances of which from the crystal faces can be varied by varying the clamping force, the plates P being sufficiently flexible, Fig. 4 shows a crystal assembly mounted in a plug type holder of the kind described in Specification 459,645. The clamping force is provided by resilient arms A1, A2 and may be varied by means of a screw S. In a modification, Fig. 3 (not shown), the electrode E is formed by a central metallic insert in an insulating clamping plate, thus reducing inter-electrode capacity at high frequencies.
Patent GB-1349655-A (GB)
Title: Mechanical reading and recognition of information
IPC: G06K7/10
Filed: 1971-07-02
Abstract: 1349655 Code reader ZELLWEGER Ltd 2 July 1971 [3 July 1970] 31042/71 Heading G4M Binary codes on labels or price tags on articles, e.g. in a supermarket are fed on belts to an optical reader 10 scanning the articles. The codes are in the form of concentric semicircles (Fig. 1, not shown) and have start and end codes and have separating bits inserted in a code word, e.g. every three bits to ensure that no more than n (= 3 in the embodiment) bits have the same value. Data is fed to a shift register 5 under the control of shift pulses from an oscillator 4 resynchronized at every 1-0 junction of data received. Logic circuit 6 monitors the start and end codes in the register and if they are incorrect resets all but the first stage of the register. If the start codes are the wrong way round the data is fed to a reversing stage 8. Circuit 7 monitors n consecutive bits and consists of n + 1 inverters each counted to a separate stage of its shift register and feeding an AND gate and a separate AND gate receiving signals from the four stages so that four consecutive l's and 0's produce a signal resetting all the stages of the shift register but the first. The separating bits and an adjacent bit are arranged to be of opposite value so sets of the two bits, e.g. bits 5, 6; 8, 9; 11, 12, &c. in Fig. 1 not shown, have one bit inserted and are fed to a detector producing an erasing signal if the pairs do not have the same sign.
Patent GB-783482-A (GB)
Title: Rubber vulcanization accelerators of improved dispersibility
IPC: C08K5/00
Filed: 1955-10-31
Abstract: A composition for use as a vulcanization accelerator comprises an arylthiazyl disulphide and an alkyl ester or hexitan mono-ester of a fatty acid having from six to eighteen carbon atoms of a rosin acid or of a mixture thereof, said alkyl ester containing not more than four carbon atoms in the alkyl group.  Preferably the composition also contains a light mineral oil, the combined weight of the oil and ester not exceeding 5 per cent of the dry weight of the disulphide. The arylthiazyl disulphide may comprise benzothiazyl disulphide, and the ester may comprise 2, 5 methyl laurate, 2, 5 ethyl octanoate, 2, 5 ethyl laurate, 2, 5 methyl octanoate, 2, 5 methyl abietate, 2, 5 butyl stearate, 2, 5 methyl hexanoate, 2, 5 methyl myristate, 2, 5 methyl stearate, 2, 5 butyl oleate, 2, 5 methyl esters of fatty acids from oxidation of aliphatic hydrocarbons, 2, 5 sorbitan monopalmitate, and 2, 5 methylated tall oil.
Patent GB-520654-A (GB)
Title: Improvements in web supply mechanism for printing and other machines
IPC: B65H19/18
Filed: 1938-10-27
Abstract: 520,654. Feeding webs. HOE & CO., Ltd., R. (Hoe & Co., Inc., R.). Oct. 27, 1938, No. 31154. [Class 100 (i)] A web supply mechanism for a printing or other machine comprises a support carrying a running roll and a replacement roll and movable to bring a nearly exhausted roll from running position to a replacement position, a first means for controlling the tension of a web passing from the roll when in running position, a second means for controlling the web tension when the roll is in replacement position and a common means. for controlling both tensioning devices. In one form, Fig. 1, the roll in the running position, i.e., the position of the roll 18 is braked by a belt 25 driven from the press at a speed slightly less than web speed, and the roll in the replacement position, i.e., of the roll 19 is braked by a belt 44 driven by a third belt 41 driven by the new roll in the running position. The belts 41,. 44 at one end pass round pulleys fixed to a shaft 47 carried by a sleeve 51 rotatable on the shaft 12 of the roll-supporting reel 53 and a semi-circular disc weight 54 fixed to the sleeve urges the belt 41 towards the roll 18. The outer end of the belt 41 passes round a pulley 42 carried by arms 58 pivoted on the shaft 47 and urged by a spring towards the roll 18. The outer end of the belt 44 passes round a pulley 45 on an arm 63 pivoted on the sleeve 51 on which is. also freely mounted a second semi-disc weight 64 having a lug 67 engaging the arm 63 to keep the belt in contact with the roll 19. One of the guide rollers 32 of the belt 25 is carried by a pivoted arm 33 adapted to be raised , and lowered, e.g., automatically, to vary the braking action of the belt and thus also of the belt 44. In a second form, Fig. 4, the tension of the web of a roll in running position is controlled partly by a belt 87 similar to the belt. 25 and partly by a pair of rollers 124, 128 between which the web passes on its way to the press. When the roll is moved out of contact with the belt 87, the web tension is controlled by the rollers 124, 128 but in addition a brake band 114 may be provided on the roll spindle. The roller 124, like the belt 87, is driven from the press at a speed slightly less than web speed and the tension of the web is controlled by varying the pressure of the roller 128 on the web. For this purpose, the roller 128 is carried by arms 134 connected by a spring 135 to a pivoted arm 120 having a cam slot 119 engaged by a roller 118 on an arm 117 actuated by the movements of a jockey roller 103 resting in a loop of the web. The movements of the roller 103 also control the braking action of the belt 87. Specifications 453,046, 478,578, 478,630, 478,632, 478,633, and 513,487 are referred to.